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Finding the Fourth Proportional to 104,102.94, 143,661.88 and 56,356.27

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Solution

The fourth proportional to 104,102.94, 143,661.88 and 56,356.27 is: 77,771.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,102.94 : 143,661.88 = 56,356.27 : x
  2. Step 2: Convert to fraction form
    104,102.94/143,661.88 = 56,356.27/x
  3. Step 3: Cross multiply
    104,102.94x = 143,661.88 × 56,356.27
  4. Step 4: Simplify right side
    104,102.94x = 8,096,247,697.99
  5. Step 5: Solve for x
    x = 8,096,247,697.99/104,102.94
  6. Step 6: Final answer
    x = 77,771.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.